Made 260K from sale of first house in Seattle after 4 years, then did an off-market deal with a friend to buy current house and now our equity in this third primary residence is ~500k. 

The more complicated your business structure becomes, the more problems it can actually cause such as when looking for lending options, getting the best interest rate, keeping clean accounting, filing taxes, opening bank accounts, getting credit cards, executing a 1031, making title insurance claims or even triggering a due on sale clause, etc. 

Clayton was the sales and Bert was the operations.

But if you look into their marketing, socials, Youtube, IG, past sales record on Zillow and stuff you can see if they really are in the investment space or if they work with traditional homeowners.

@Chris Seveney is much better informed about the current state of note sales than I am since 80% of my business is originating high yield notes and only 20% is the purchase of existing notes.  

With your current tenant moving out, it sounds like it could be the perfect time to plan your sale and exchange. 

If you or a partner dies and you have to sale you will lose money.  

@Muhammad Kashif to avoid interest related transactions:1) Buy & hold rentals - you make your money back via rental payments.2) Funding flip deals - instead of lending at an interest rate, you could lend for a percentage of the profits on the sale.

buying, rehab and re-sale is a business.     

I would also add that if you have any upcoming capital gains from a passive activity (i.e. you plan to sell a rental property) then the depreciation losses from a different property can help offset/defer the gains from the sale on the other